Door-check.



D. BES

APPLIOATIO CHE LED I'ISB. 23. 1909.

Patented Dec, 7, 1909.

DOMINGO DESPLATS, O]? BUENOS AYRES, ARGENTINA.

IDOOR-CHECK.

Specificaton of Letters Patent.

Patented Dec. 7, 1999.

Applcaton filed February 23, 1909. Serial No. 479,454.

To all whom vlt may CO7LCGI'TL.

Be t known that I, DOMINGO DESPLATS, shorthand typst, a citzen ofArgentina, ancl residing at 240-25 de Mayo street, Buenos Ayres,Argentina, have nvented an Improve- 1nent in Door-Checks, of which thefollowing is a specification.

This inventon relates to that class of door checks Which are provided toprevent the 61001 01 window from comng nto contact with the wall andalso t0 catch automatically and mantan t in open position against anyordnary wind 01 other cause t0 prevent sammng.

The objects of this nventon therefore are to provide an automatc catchngdevce and a means for automatically releasng the (1001 at will wthoutthe necessty of sto0ping t0 release the catch. These objects are attanedby means of the device illustrated in the drawng in which- Figure 1 is asde elevaton of the device secured in place. F 1g. 2 is a plan viewthere- 0f. Fig. 3 s a sectional view on line 8-3 of Fig. 1.

In the construction the member A is attachec to the floor or wall andcarres a circu1ar toothed elen1ent 01 ratchet wheel B secured t0 saidme1nber A by means of a stud D and washer C. A counter support E isattached to the door or wndow and supports in a horizontal position thccatch plate G, whch has a slot P t0 engage with the teeth in t-heratchet wheel B.

'lhe counter support E in its preferred form consists of a plate adaptedto be bent in the shape of a trough, wth ts open side toward the door,said plate beng provided with a hole M for the fastening screw, and Wtha 1ecess E adapted to hold the catch G. The catch plate G has lateralrecesses L and a downward rear extenscn by means of' whch t is suspendedon the support E in order to mantain it in a horizontal position asshown in Fig. 1.

The washer C and stud screw D attach the ratchet wheel to the support Ain a manner which prevents the free 1novement of the wheel. The ratchetplate G, when the door s opened, moves over the teeth N of the wheel Band catches; the frction of the washer C and stud screw D holds the doorin an open position against the Wall under nearly all ordinaryconditions, but a more than usual pressure against the door causes cheratchet wheel to turn sufiiciently t0 release the catch, and door.

I claim A coor check comprising in combnaton, a fixed mcmber, a crculartoothed element, 1neans frctionally securing sad element to said memberto retald rotation of the former, and a devce mounted upon the (1001 andprovided with a porton for automatic engagement With and dsengagementfrena said toothed element.

In testmony whereof I affix my signature in presence of two wtnesses.

DOMINGO DESPLATS. VVtnesses:

JOSE T. GALLARDA, J os ROBLES.

